1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 package org.apache.myfaces.orchestra.viewController; 20 21 /** 22 * Each view controller configured with the constructor will be asked to map the given viewId. 23 * The first one not returning NULL wins. 24 * <p> 25 * As an example, this can be configured to first try a mapper that converts the viewId to 26 * a beanname, then if that fails to find a match try a mapper that uses class annotations 27 * to find an appropriate bean. 28 */ 29 public class CompositeViewControllerNameMapper implements ViewControllerNameMapper 30 { 31 private final ViewControllerNameMapper[] viewControllerNameMappers; 32 33 public CompositeViewControllerNameMapper(ViewControllerNameMapper[] viewControllerNameMappers) 34 { 35 this.viewControllerNameMappers = new ViewControllerNameMapper[viewControllerNameMappers.length]; 36 System.arraycopy( 37 viewControllerNameMappers, 0, 38 this.viewControllerNameMappers, 0, 39 viewControllerNameMappers.length); 40 } 41 42 public String mapViewId(String viewId) 43 { 44 for (int i = 0; i<viewControllerNameMappers.length; i++) 45 { 46 String beanName = viewControllerNameMappers[i].mapViewId(viewId); 47 if (beanName != null) 48 { 49 return beanName; 50 } 51 } 52 53 return null; 54 } 55 }